Method for the distillative separation of a mixture containing vinyl ether and alchol
    75.
    发明申请
    Method for the distillative separation of a mixture containing vinyl ether and alchol 失效
    含有乙烯基醚和醇的混合物的蒸馏分离方法

    公开(公告)号:US20060151310A1

    公开(公告)日:2006-07-13

    申请号:US10560135

    申请日:2004-06-08

    IPC分类号: C07C41/00 B01D3/00

    摘要: Process for distillatively separating a mixture containing a vinyl ether of the general formula (I) R1—O—CH═CH2   (I) and alcohol of the general formula (II) R2—OH (II) in which R1 and R2 are each independently a saturated or unsaturated, aliphatic or cycloaliphatic radical having from 2 to 10 carbon atoms, and in which the alcohol (II) has a boiling point which is at least 1° C. higher, measured at or extrapolated to 0.1 MPa abs, than the vinyl ether (I), by a) passing the mixture into a first distillation column and withdrawing, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II) and, as a bottom product, a stream enriched with the alcohol (II); b) passing the azeotrope containing vinyl ether (I) and alcohol (II) from the first distillation column into a second distillation column which is operated at a pressure which is from 0.01 to 3 MPa higher compared to the first distillation column, and withdrawing, as a bottom product or gaseous sidestream in the stripping section, the vinyl ether (I) and, as a top product, an azeotrope containing vinyl ether (I) and alcohol (II); and c) recycling the azeotrope containing vinyl ether (I) and alcohol (II) from the second distillation column into the first distillation column.

    摘要翻译: 蒸馏分离含有通式(I)的乙烯基醚的混合物的方法<?in-line-formula description =“In-line formula”end =“lead”?> R 1 -O -CH-CH 2(I)<?在线公式描述=“直列式”末端=“尾”→和通式(II)的醇< line-formula description =“In-line Formulas”end =“lead”?> R 2 -O 2(II)<?in-line-formula description =“In-line Formulas”end =“ 其中R 1和R 2各自独立地是具有2至10个碳原子的饱和或不饱和的脂族或脂环族基团,其中醇 (II)的沸点比乙烯基醚(I)具有至少1℃以上测量或外推至0.1MPa abs的沸点,a)将混合物通入第一蒸馏塔并取出,作为 顶部产物,含乙烯基醚(I)和醇(II)的共沸物,和作为底部产物的富含醇(II)的物流; b)将含有乙烯基醚(I)和乙醇(II)的共沸物从第一蒸馏塔送入第二蒸馏塔,其与第一蒸馏塔相比压力高出0.01至3MPa, 作为汽提部分中的底部产物或气体侧流,乙烯基醚(I)和作为顶部产物的含乙烯基醚(I)和醇(II)的共沸物; 和c)将来自第二蒸馏塔的含乙烯基醚(I)和乙醇(II)的共沸物再循环到第一蒸馏塔中。

    Method for the continuous production of tetra-substituted ureas
    76.
    发明授权
    Method for the continuous production of tetra-substituted ureas 失效
    连续生产四取代脲的方法

    公开(公告)号:US07053244B2

    公开(公告)日:2006-05-30

    申请号:US10520402

    申请日:2003-07-03

    IPC分类号: C07C273/18

    CPC分类号: C07C273/1809 C07C275/06

    摘要: The invention relates to a process for the preparation of tetrasubstituted ureas by reaction of the corresponding amines with phosgene in the presence of an aqueous inorganic base at a temperature in the range from 0 to 150° C., which comprises: feeding the corresponding amine, the phosgene and the aqueous inorganic base on average continuously to the reaction apparatus, forming a two-phase system in the reaction apparatus through the choice of the tetrasubstituted ureas to be prepared, through the mixing ratios of the substances and substance mixtures to be fed in, through the temperature during the reaction and, where appropriate, through the feed of an organic solvent which is not completely miscible with water, and discharging the reaction mixture on average continuously from the reaction apparatus.

    摘要翻译: 本发明涉及通过在无机碱水溶液存在下,在0至150℃的温度范围内使相应的胺与光气反应来制备四取代的脲的方法,该方法包括:将相应的胺, 光气和水无机碱平均连续向反应装置中,通过选择要制备的四取代脲形成反应装置中的两相体系,通过待进料的物质和物质混合物的混合比例 通过反应期间的温度,并且在适当的情况下,通过进料与水不完全混溶的有机溶剂,并从反应装置中连续排出反应混合物。

    Continuous method for the production of sugar alcohols
    78.
    发明申请
    Continuous method for the production of sugar alcohols 审中-公开
    连续生产糖醇的方法

    公开(公告)号:US20060009661A1

    公开(公告)日:2006-01-12

    申请号:US10538265

    申请日:2003-12-03

    IPC分类号: C07C29/14

    摘要: A continuous process for preparing sugar alcohols by catalytic hydrogenation of an aqueous solution of a saccharide, which forms the corresponding sugar alcohol on hydrogenation, in the presence of a ruthenium catalyst which is obtainable by: i) single or multiple treatment of an amorphous silicon-dioxide-based support material with a halogen-free aqueous solution of a low-molecular-weight ruthenium compound and subsequent drying of the treated support material at below 200° C., ii) reducing the solid obtained in i) with hydrogen at from 100 to 350° C., step ii) being carried out immediately after step i), which comprises, before the hydrogenation, bringing the aqueous saccharide solution to be hydrogenated into contact with the support material.

    摘要翻译: 一种在钌催化剂存在下通过氢化形成相应的糖醇的糖水溶液的催化氢化制备糖醇的连续方法,其可以通过以下步骤获得:i)单次或多次处理非晶硅 - 二氧化物基载体材料与低分子量钌化合物的无卤素水溶液,随后将处理的载体材料在低于200℃下进行干燥,ii)在100℃下用氢气还原所得固体, 至350℃,步骤ii)在步骤i)之后立即进行,其包括在氢化之前将待氢化的糖水溶液与载体材料接触。

    Polysiloxane sols method for the production and use thereof
    79.
    发明申请
    Polysiloxane sols method for the production and use thereof 失效
    聚硅氧烷溶胶的制造及使用方法

    公开(公告)号:US20050090635A1

    公开(公告)日:2005-04-28

    申请号:US10498784

    申请日:2002-12-30

    摘要: Polysiloxane sols preparable by subjecting (1) in a first stage (A) a silicon compound of the general formula I: (ZoL-)mSi(H)n(R)p  (I), which is free of carbamate groups and where o is an integer from 1 to 5; m is 0, 1, 2 or 3; n is an integer from 1 to 4; p is 0, 1 , 2 or 3; Z is a reactive functional group, excluding carbamate group; L is an at least divalent, linking, organic group; H is a hydrolyzable, monovalent, organic group or hydrolyzable atom; R is a nonhydrolyzable, monovalent, organic group; to partial hydrolysis and condensation in the presence (B) of at least one crosslinking agent, and then subjecting (2) in a further stage, the reaction mixture (1) to complete hydrolysis and condensation with (C) a hydrolyzable, carbamate-functional silicon compound of the general formula II: {[HR1N—(O)C—O—]rL-}sSi(H)t(R)u  (II) where R1 is a hydrogen atom or group R; r is an integer from 1 to 5; s is 1, 2 or 3; t is 1, 2 or 3; u 0, 1 or 2; and their use as coating materials, adhesives, and sealing compounds and also for producing optical moldings and self-supporting films.

    摘要翻译: 通过在(1)第一阶段(A)中对通式I的硅化合物进行(1)制备的聚硅氧烷溶胶:<?in-line-formula description =“In-line Formulas”end =“lead”→>(Z 它不含氨基甲酸酯基团,其中o是1-5的整数; m为0,1,2或3; n是1至4的整数; p为0,1,2或3; Z为反应性官能团,不含氨基甲酸酯基; L是至少二价的,连接的有机基团; H是可水解的,一价的,有机基团或可水解的原子; R是不可水解的,一价的有机基团; 在至少一种交联剂的存在(B)下部分水解和缩合,然后在(2)的另一阶段中使反应混合物(1)完全水解和缩合(C)可水解的氨基甲酸酯官能 通式II的硅化合物:<?in-line-formula description =“In-line formula”end =“lead”?> {[HR <1> N(O)CO - (II) (II) 公式description =“In-line Formulas”end =“tail”?>其中R 1是氢原子或基团R; r为1〜5的整数; s为1,2或3; t为1,2或3; u 0,1或2; 以及它们作为涂料,粘合剂和密封剂的用途,以及用于生产光学模制品和自支撑膜。

    Method for producing o-chloromethyl benzenecarbonyl chlorides
    80.
    发明授权
    Method for producing o-chloromethyl benzenecarbonyl chlorides 失效
    邻苯甲酰氯的制备方法

    公开(公告)号:US06734322B1

    公开(公告)日:2004-05-11

    申请号:US10130826

    申请日:2002-05-23

    IPC分类号: C07C5158

    CPC分类号: C07C51/09 C07C63/04

    摘要: The invention relates to a method for producing o-choromethyl benzenecarbonyl chlorides of formula (I), wherein R1-R4 can be the same or different and stand for hydrogen, C1-C4-alkyl, halogen or trifluoromnethyl, by converting benzocondensed lactones of formula (II), wherein R1-R4 have the aforementioned meaning, with gaseous or liquid phosgene and the dimers or trimers thereof. The inventive method is characterized in that the conversion is carried out in the presence of catalytical amounts of a Lewis acid and catalytical amounts of a phosgenation catalyst

    摘要翻译: 本发明涉及一种制备式(I)的邻氯甲基苯甲酰氯的方法,其中R 1 -R 4可以相同或不同,代表氢,C 1 -C 4 - 烷基,卤素或三氟甲基, 通过用气态或液体光气及其二聚体或三聚体转化其中R 1 -R 4具有上述含义的式(II)的苯并二化内酯。 本发明的方法的特征在于转化在催化量的路易斯酸和催化量的光气化催化剂